🚀 go-pugleaf

On Ultrix 4.2, the header files are mostly ANSI compliant, and while the
vendor cc is not an ANSI C compiler, the compiler does recognize void *,
const, and volatile.  E.g., the header files declare memcpy as:

	#ifdef __STDC__
	extern void *memcpy( void *__s1, const void *__s2, size_t __n );
	#else
	extern void *memcpy();
	#endif

This causes problems with GDB when compiling with cc because gdb both
includes the header file and declares the function itself...  however,
since __STDC__ isn't defined (afterall, cc isn't an ANSI compiler), gdb
declares memcpy as:

	extern char *memcpy();

There are other functions besides memcpy that it both declares wrong and
includes headers that declare it correctly...

...and each of these results in a compile time error.  If someone would
like a list of the functions it complains about, I can (re)generate such
a list.

It would be nice if the decision about whether to declare things
correctly and whether to use prototypes were independent.  And if
configure were to then set things up appropriately...

David